[java] EXCEPTION_ACCESS_VIOLATION ??

Hey, what can cause this? An unexpected exception has been detected in native code outside the VM. Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x6D0238F7 Function=Java_sun_java2d_loops_MaskFill_MaskFill+0x1F4C7 Library=C:\Program Files\Java\jre\bin\awt.dll I get it from my Pong clone, it only happens every now and again, but I don''t have any problems otherwise. My program just crashes when I start a new game and the ball hits the wall. **Joshua